Bobbin-notching machine.



PATBNTED AUG. 6', 1907-. I. A. BLOOD.

BOBBIN NOTGHING MAGHINE. APPLICATION FILED MAY 1:), 1905.

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I; A. BLOOD.

PATENTED AUG; 6. 1907.

BOBBIN N OTGHIN G MAGHINE. APPLICATION rnmn Mn 1a, 1005.

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UNITED STATES PATENT OFFICE.

IRA A. BLOOD, OF METHUEN, MASSACHUSETTS, ASSIGNOR TO U. S. BOBBIN AND SHUTTLE CO., INCORPORATED, OF PROVIDENCE, RHODE ISLAND, A CORPORATION OF NEW JERSEY.

BOBBIN-NOTCHIN'G MACHINE.

Specification of Letters Patent.

Patented Aug. 6, 1907.

Application filed May 18,1905. Serial No. 261.062.

To all whom it may concern:

Be it known that I, IRA A. BLoon, a citizen of the United States, residing at Methuen, in the county of Essex and State of Massachusetts, have invented a new and useful Improvement in Bobbin Notching Machines, of which the following is a specification.

This invention has reference to an improvement in wood working machinery and more particularly to an improvement in bobbin notching machines used for notching or slotting the heads of bobbins.

Bobbin notching machines as heretofore constructed consisted of a frame having a flat bed, a revolving cutter extending througha slot in the bed and aguide secured to the bed at one side of the cutter. The operator grasped the bobbin with the head downwards, placed the head of the bobbin on the bed against the guide and forced the bobbin across the cutter to cut the notch in the head of the bobbin. These machines were slow and laborious in operation and required skilled workmen, as the accuracy of the notch in the head of the bobbin depended entirely on the skill and strength of the operator in holding the head of the bobbin on the bed against the guide and cutter of the machine. These machines were also dangerous, as the operator had no protection from the cutter in operating the machine.

The object of my invention is to improve the construction of a bobbin notching machine, whereby the bobbins being placed successively in the receiver of the machine by the operator are taken from the receiver, notched by passing the head of the bobbin over a revolving cutter and delivered to a receptacle on the floor automatically, the speed of the machine being limited only by the rapidity of the operator in placing the bobbins in the receiver of the machine.

A further object of my invention is to produce a bobbin notching machine that will notch the heads of bobbins more accurately at greater speed and at a lower cost than has heretofore been done.

My invention consists in the peculiar and novel con struction of a bobbin notching machine adapted to take the bobbins in succession from the receiver of the machine, pass the heads of the bobbins over a revolving cutter to notch the heads, and deliver the bobbins into a receptacle automatically, as will be more fully set forth hereinafter.

Figure 1 is a vertical front view of my improved bobbin notching machine, showing a bobbin in thereceiver in the position to be caught by one of the carrier arms, passed over the revolving cutter for notching the head of the bobbin, and automatically delivered into the receptacle on the floor. Fig. 2 is a vertical transverse sectional View taken on line X X of Fig. 1, looking to the right thereof showing the position a bobbin would assume in being carried over the cutter by one of the carrier arms, the arms of the semi-circular guide and the support for the receiver being shown in broken lines, which appear to the left of the section line XX of Fig.1,and Fig. 3 is an enlarged detail top view of part of the semi-circular guide and the end of one of the spring-pressed carrier arms, showing the slot in the guide through which the cutter extends, the side opening in the end of the carrier arm for the shank of a bobbin, the roll for lifting the end of the carrier arm over the head of a bobbin, and a bobbin the head of which is firmly held on the semi-circular guide in a position to be passed centrally over the cutter to notch the head of the bobbin. Fig. 4, is a view similar to Fig. 2, but looking to the left of section line XX of Fig. 1.

In the drawings, a indicates the frame of the machine, b the bobbin receiver, 0 the cutter mechanism, (2 the guide mechanism, 6 the bobbin carrier mechanism, f the bobbin hopper supported on the frame of the machine, g the receptacle on the floor for receiving the notched bobbins and h h the bobbins.

The frame a consists of the bed a supported on the legs a a and having the head stock a with the bearings a a for the cutter mechanism 0, the bearings a a for the shaft of the carrier mechanism a, and the U-shaped central opening a for the operative parts of the carrier mechanism, as shown in Fig. 1.

The receiver b consists of an inclined block I) having an approximately vertical semi-circular groove 1) in its face adapted to hold the shank of a bobbin. The receiver is supported over the U-shaped opening a by securing the block b to the arm b which in turn is secured at right angles to the upper end of the vertical arm b", as shown in Fig. l. The vertical arm b is pivotally secured to the inner face of the head stock a in the U-shaped opening a by the stud I) and adjustably secured by the bolt 1). "he stud b extends into the U-shaped opening a through a hole in the lower end of the arm I) and is adjustably secured through a vertical slot in the head stock a by the nut If. The bolt 1) extends through a semi-circular slot b in the arm I), as shown in Fig. 4, and through a vertical slot in the head stock a" where it is secured by the nut I), as shown in Fig. 1. By this construction the receiver b is given any position or inclination required.

The cutter mechanism 0 consists of the shaft 0 supported in the bearings (t a and having the cutter secured on its inner end and the small pulley secured to the shaft between the bearings a a for revolving the cutter, the thickness of which coincides with the width of the notch or slot to be cut in the head of the bobbins.

The guide mechanism d is constructed to have the semi-circular face d, and the upwardly-extending side lips (I d forming a guide in the formof a U-shaped trough the width of which is approximately the diameter of the head of the bobbins, the slot d in the face through which the cutter 0 extends upward from the face d the distance required to cut the depth of notch in the head of the bobbins, the boss (1* having a vertical slot for the shaft c of the cutter mechanism, the off-set slot (i in the forward end of which is pivotally secured the roll (1 in a position to extend above the lip (l and the arms (I (1 extending downwards from the guide to the hub (Z which is adjustably secured to the stud If by the set bolt (l By this construction the guide is lnovable in an arc-like plane and maybe adjusted on the stud b to center the cutter c and vertically by raising or lowering the stud b and the bolt b on the head stock or to vary the depth of the cut forming the notch in the head of the bobbins.

The bobbin carrier mechanism a consists of the shaft 0 supported in the bearings a a and having the large pulley c on its outer end and the disk 6" on its inner end on the face of which are the series of parallel ribs 0* e forming guides for the L-shaped arms 6 0 as shown in Fig. 2. Each of the L-shaped arms 0 c has the outwardly-extending off-set lug a on its outer end and the radial slot 6 in its inner end by which it is adjustably secured to the disk 0 between the ribs 0 c by the bolt 0*. The Hat spring carrier arms a each have the side opening 0 in their outer end adapted to receive the shank of a bobbin and the slot 0 in its inner end, as shown in Fig. 1 and Fig. 3. A whip spring 0 is placed on top of the carrier arm 0 and both adjustably secured to the face of the L-shaped arm a against the off-set lug e by the bolt 0 passing through ahole in the inner end of the whip spring o and the slot e in the carrier arm a as shown in Fig. 1.

"he bobbin hopper f consists of an open top box having the opening f in the front adjacent the bottom, as shown in Fig. 1. The hopper f is supported on the top of the bearings a a by the bracket f as shown in Fig. 2, so as to bring the opening f in the hopper in a convenient position for the operator to remove the bobbins from the hopper through the opening.

The receiving receptacle g consists of an open top box adapted to be supported on the floor at the back of the machine in a position to receive the bobbins h from the machine after they have received the notch h, shown in Fig. 2.

When my improved bobbin notching machine is assembled and adjusted, a space is formed between the bottom of the receiver block b and the face (1 of the guide for the head of the bobbins and the ends of the carrier arms which pass under the receiver block and over the guide, as shown in Fig. 2. The guide has a curvature coinciding with the circular path of the carrier arms which extend outwards at right angles from the disk 0 into a position to bring the opening 0 in. the side of the arm on a line central with the center of the groove 1) in the receiver block b and the cutter 1: as shown in Fig. 3. Any number of the carrier arms 6 e placed an equal distance apart on the disk 12 inay be used. In practice I find that a series of six carrier arms as shown in the drawings is suflicient.

In the operation of my improved bobbin notching machine the cutter a is revolved at a high rate of speed by the small pulley 0 through a belt in the direction of the arrows and the disk 6 with the series of carrier arms c revolved at a low rate of speed in the direction of the arrows by the large pulley 0 through a belt in the usual Way. The operator ren'loves the bobbins from the hopper f through the opening f and places them in succession in the groove b of the receiver block b with the head of the bobbin resting on the face 11 and between the lips (Z (Z of the guide, as shown in broken lines in Fig. 2 and in full lines in Fig. 3. A carrier arm moving in the direction of the arrow, as shown in Fig. 2, engages with the roll d in the forward end of the guide and is sprung out vard from its normal position against the tension of the spring 6 to raise the end of the carrier arm over the head of the bobbin. As the carrier arm goes beyond the roll the shank of the bobbin enters the opening e in the carrier arm which resumes approximately its normal position under its own and the tension of the spring a" and forces the head of the bobbin firmly against the face d of the guide. The bobbin h is now carried on the guide over the cutter e which cuts the notch h in the head of the bobbin. When the bobbin reaches the rear end of the guide it is released from the guide and carrier arms and falls into the receptacle 9 on the floor, as shown in Fig. 2. This operation is repeated by each carrier arm in succession and as fast as the operator can place the bobbins in the receiver 1) of the machine.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. A bobbin notching machine having a receiver in which is a groove adapted to receive the shank of a bobbin, a revolving cutter, a semi'circular guide shaped to receive the head of the bobbin and having a slot through which the cutter extends, means for adjusting the bobbin receiver, means for adjusting the semi-circular guide, and means for automatically moving the bobbin on the semicircular guide from the bobbin receiver over the cutter to cut a notch in the head of the bobbin, as described.

2. A bobbin notching machine having a hopper in which is an opening for removing the bobbins from the hopper, a receiver in which is a groove adapted to receive the shank of a bobbin, a revolving cutter, a U-shaped semi-circular guide adapted to receive the head of a bobbin and having a central slot through which the cutter extends, a receptacle on the floor to receive the notched bobbins, means for adjusting the bobbin receiver, means for adjusting the guide, and means for automatically moving the bobbin 0n the guide from the receiver over the cutter to cut a notch in the head of the bobbin, the bobbin when released from the guide dropping into the receptacle on the floor, as described.

A bobbin notching machine having a hopper in the front of which adjacent the bottom is an opening for re moving the bobbins from the hopper, a receiver in the form 0! a block in the face of which is a groove adapted to re coive the shank of a bobbin, a rotary cutter, means for roiatably supporting the cutter, a semi-circular guide having upwardlyextending lips adapted to receive the head of :1 bobbin and a central slot through which the cutter ex tends, a rotary bobbin carrier having a series of spring pressed arms adapted to engage with and move a bobbin on the guide from the receiver over the cutter to cut a notch in the head of the bobbin, means for rotatably supporting the rotary bobbin carrier, and a receptacle on the floor to receive the notched bobbins, the bobbins when re leased from the guide falling into the receptacle, as described.

4. In a bobbin notching machine, the combination with the 1 me (I having the head stock a of the receiver i, consisting of the block I) having the groove 11 and secured to the arm I) which in turnis secured at right angles to the vertical arm I)", the stud D pivotally supporting the vertical arm I)", and secured through a verticalslot in the head stock a by the nut b the belt I) adjustably securing the arm I) through a semi-circular slot 11 in the arm I; and a vertical slot in-the head stock a by the nut I)", hereby the receiver is adjusted vertically and laterally. as described.-

5. In a bobbin notching machine, the combination with a frame 0 having the head stock a the bearings a* and the stud b adjustably secured to the head stock a through a vertical slot in the head stock by the nut D of a cutter mechanism 0 consisting of the shaft 0' in the bearings a (H,

the cutter r on the inner end of the shaft, and the pulley 1 on the shaft between the bearings a (1: and a guide mechanism (1 consisting of a semi-circular guide having the face (1'. the upwardly-extending side lips (I (I -Z the con iral slot 11 for the cutter the boss d in which is a veriical slot for the shaft 0', the off-set slot (1 in which is pivotally secured the roll (1, and the arms (1 (1.? extending downwards to the hub (l which is adjnstably secured to the stud b by the set bolt (l' whereby the guide is adjnst able vertically on the head stock oz to "ary the depth of the cut, and lengthwise on the stud b to center the cutter, as described.

(3. In a bobbin notching machine, the combination of a frame IZ having the bearings a a and the U-shaped opening 11", of a bobbin carrier mechanism 6 consisting of the shaft 0' rotatably supported in the bearings a a the pulley c on lhe outer end of the shaft. the disk 6 on the inner end of the shaft in the opening a, the series of parallel ribs e e on the face of the disk'forming guides for the L-shaped arms 0 each L-shaped arm having the lug e on its outer end and the radial slot c in its inner end by which it is secured to the disk by the bolt 6 the series of flat spring carrier arms 0" 0 each having in its outer end the side opening 0 adapted to receive the shank of a bobbin and the slot 0 in its inner end, the whip spring e and the bolt e whereby the L-shaped arms e e are adjustably secured to the face of the disk 6 in a circle at equal distances apart and the carrier arms 0 c are adjustahly secured to the face of the L-shaped arms 0 6 as described.

7. In a bobbin notching machine, the combination of :1 frame a, an adjustable bobbin receiver 2;, a rotary cutter mechanism 0, an adjustable guide mechanism (1, an adjustable rotary bobbin carrier 0, a bobbin hopper 7 having the opening f and supported on the frame a by the bracket F and a receptacle y adapted to be supported on the floor at the back of the machine to receive the notched bobbins from the machine, as described.

8. A bobbin notching machine embodying an arc-shaped guide, a cutter related thereto, a vertically disposed carrier wheel, and spring pressed holding means on said car rier which overlie the guide and coact therewith and which engage the under sides of the bobbin heads to 1naintain the opposite sides in engagement with said guide, the bobbins gravitating from said holding means after having been moved past said guide.

.I. A bobbin notching machine embodying an arc-shaped guide, a cutter related thereto, a vertical carrier wheel. holding arms on said carrier movable vertically at one end and formed to receive the bobbin shanks and engage the heads thereof to sustain the latter in contact with the guide, and springs bearing on said arms.

10. A bobbin notching machine embodying a guide and a cutter related thereto, a verticaL carrier wheel, resilient arms projecting at right angles from said wheel and movable vertically at one end thereof, said arms being spaced from said guide so as to receive the head of the bobbin between the said arms and guide and to move the same past said cutter.

11. A bobbin notching machine, embodying a stationary part, a cutter related thereto, and vertically disposed means for conveying bobbin heads past said part, said means comprising spring carrier arms projecting at right angles from said means and engaging the under sides of the bob bin heads and formed to receive the shanks thereof.

12. A bobbin notching machine, embodying a stationary part, a cutter related thereto, rotatable means for carrying the bobbins past said part, a. series of spaced fiat spring carrier arms having side openings to receive the shanks of the bobbin and to engage the under sides of the bobbin heads to maintain the opposite sides of the heads in con tact with said part.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

IRA A. BLOOD.

Witnesses WILLiAu H. SHERMAN, ARTHUR L. SCOLLAY. 

